| Salem Formation | |
|---|---|
| Stratigraphic range: Mississippian | |
Fossil red algae on Salem Limestone from Kentucky
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| Type | Formation |
| Unit of | Sanders Group, Meramec Group |
| Underlies | St. Louis Limestone |
| Overlies | Harrodsburg Limestone[1] Warsaw Formation[2] |
| Lithology | |
| Primary | Limestone |
| Location | |
| Region | Illinois, Indiana, Kentucky, and Missouri |
| Country | United States |
| Type section | |
| Named for | Salem, Washington County, Indiana[2] |
The Salem Formation is a geologic formationinIllinois, Indiana, Kentucky, and Missouri. It preserves fossils dating back to the Mississippian subperiod. This formation is quarried and used as a building material, known as "Indiana limestone", also called Bedford limestone.
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